This single resistor air elements can be used on 12 & 24V battery systems to divert surplus power (up to 1kW each) to air heating.
The power dissipated in a resistor is calculated as follows:
(fully charged battery voltage)^2 / resistance
Also check that the maximum current draw does not exceed 30 amps.
Current = Power/fully charged battery voltage
Please note: Must be mounted on a steel backing with suitable protection to eliminate any fire risk.
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